1225758479 has 8 divisors (see below), whose sum is σ = 1337484288. Its totient is φ = 1114081560.

The previous prime is 1225758451. The next prime is 1225758493. The reversal of 1225758479 is 9748575221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225758479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225758409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57554 + ... + 75920.

It is an arithmetic number, because the mean of its divisors is an integer number (167185536).

Almost surely, 2^1225758479 is an apocalyptic number.

1225758479 is a deficient number, since it is larger than the sum of its proper divisors (111725809).

1225758479 is a wasteful number, since it uses less digits than its factorization.

1225758479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24445.

The product of its digits is 1411200, while the sum is 50.

The square root of 1225758479 is about 35010.8337375733. The cubic root of 1225758479 is about 1070.2082684819.

The spelling of 1225758479 in words is "one billion, two hundred twenty-five million, seven hundred fifty-eight thousand, four hundred seventy-nine".